Spinning machine



Jan 189 H. D. COLMAN Eff-AL SPINNING MACHINE Filed May 29, 19188.Sheets-Sheet 1 gee-556.5.'

Jam 18 1927 H. D. coLMAN 1-:r AL

SPINNING MACHINE Jan. 18,1927. 1,514,718

H. D. coLMAN 1-:1' AL SPINNING MACHINE Filed May 29, 1918 8 Sheets-Sheet3 Jan. 18, 1927. Y

H. D. COLMAN ET AL SPINNING MACHINE Filed May 29, 1918 8 Sheets-Sheet 4Jan. 1s, 1927.

H. D. COLMAN ET AL SPINNING MACHINE e` snapte-sheet s Filed nay 29. 191e)m2515656 gz@ up 8 Sheets-Sheet 6 SPINNING MACHINE H. D. COLMAN Er ALFiled My 29. 1918 Q- IHW 1 l l if.. .1. 5% 1, IVW" 1 l N% mml AQ U huh:mv hihi. y

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Jan. 18, 1927.

Jan. ,18, 1927.

1,614,718 H. D. coLMAN E'r AL SPINNING MACHINE Filed May 29, 1918 8Sheen-Sheet 7 Patented J 18; 19727.

UNITED `STATES PATENT OFFICE.

HOWARD D. COLHAN AND BUBfl A. PETERSON, OF BOCXFOBD, ILLINOIS,ASSIG'NOES,` BY MESNE ASSIGNMENTS, TO BABBEB-COLMAN COMPANY, F ROCXIOBD,ILLINOIS,

A CORPORATION OF ILLINOIS.

SPINNING MACHINE.

Application med my as In order to facilitate the mechanical tind in ofthe free end of the yarn on a filling bo bin or a warp bobbin,- it isdesirable to spin enough coils of ya'rn on the upper end of the bobbinto form a small'mass abov^ the main yarn mass, which coils of yarn maybe grasped by a suitable device and stripped 0H the bobbin. These coilsof yarn, of course, are connected by a strand of yarn to A the main yarnmass, and when stripped ott the bobbin they are followed by said strand,the latter constituting the found end.

One of the objects of the present invention is to provide improvedmechanism for operating the spinning machine to produce a small arn massupon the upper end of cach bob in.

Before removing the full bobbins from the spinning frame, it iscustomary to lspin a few coils of yarn upon the lower end of the bobbinin order that when the bobbin is dofed these coils of yarn shall slipoli onto the spindle -and afford means for attaching the yarn to the.newbobbin. The coils of yarn upon the lower end ofy the bobbin are spunafter the yarn has been coiled about the upper end of the bobbin andthus the coils at the upper end of the bobbin are connected to those atthe lower end of the bobbin by a strand of yarn. If the proper number ofcoils have been wound about the lower end of thebobbin, theyl will slipoff the bobbinand the connecting strand will be broken in the dotiingoperation;'but, if an excessive amount -of yarn hasl been wound aboutthe lower end of the bobbin, some of that yarn' will remain wound aboutthe lowerlen'd of the bobbin when the bobbin is dotted and, therefore,the strand connecting the upper coils to the lower coils will not bebroken. When such a bobbin is placed in .a Weft-.repleuishing loomprovided with an enfl-tinding devicefpr stripping the upper coils ofi'the bobbin, various difficulties.- may arise. If the surplus vlowercoils unwind when the upper coils are strippedpo the bobbin, saidsurplus coils will form strand of greater or less length which trailsalong .with the found end; and if this strand is of excessive length itwill reach into the cloth 1918. Serial No. 231,191.-

and cause a defect therein. If the strand connectin the up er and loweroils'should break in t 1e endnding opera lon, the yarn remnant on thelower portion of the bobbin Will either break the weft thread or becomewoven into the cloth. Or the vfound end may break inthe end-findingoperation while being unwound beneath the strand connecting the upperandjlower coils.

It is necessary that the strand extending 00 from the front drawing rollto the traveler shallbe somewhat slackyin order, principally, to allowthe-bobbin to be lifted until the strandA extending between the travelerand the bobbin assumes such an angle that the 05 coils on the lower endof the bobbinwill slide off. If, however, too much slack'yarn is s un,there ma'y result excessively large kinks which may catch on the` threadguide or other parts and cause breakage of the7o yarn,eor the kinks maybe unable to pass through the traveler or the thread guide and thuscause breakage of the ya'r'nwhen the l machine is again started.

The method heretofore used in spinnin a dofiing coil uponv the lower endof the bob in and in obtaining the necessary slack has consisted inlowering the ring rail tothe dofting position and then stopping andrestarting the machine repeatedly and in quick succesg3 sion by shiftingthe driving belt off and-'v onto the drive pulley. When the ring railreached the doing position, someI yarn would be wound around the lowerend of the bobbin and during the succeeding operationl of the machinemore or less slack yarn would be spun. In practice, this method ofspinning yarn on the lower end of a bobbin and rovidin'g slack yarn didnot produce satis actory results. Inl restarting the nla- `chine thebelt would sometimes be allowed to remain upon the drive pulley solongthat the 'speed of the machine would increase to the point wheresome or all of the slack yarn previously spun would be wound upon thelower end of the bobbin, thereby placing an excessive amount of yarn onthe lower end of the bobbin and making it necessary to spin more slackyarn to take the place of that which had been unintentionally wound ifbobbin and to spin the proper amount ofr slack yarn, thus alsosimplifying and reducing the work of stopping the machine in i lcondition for doiing.

l In the accompanying drawings, Figure 1l is a fragmental side elevationof a spinning machine embodyingr the features of our ini vention. Fig. 2is a ragmental transverse sectional view' showing, more or lessdiagrammatlcally, the drawing rolls, the

thread-board, the bobbin, andthe ring rail.

Fig. 3 is asectional view, upon an enlarged scale, taken in the plane ofline 3-3 of Fig. 1. 'Figi 4 is a ragmental longitudinal section taken inthe plane of line 4-4 of Fig. 7, showing the end of the machine oppositetoI that illustrated in Fig. 1. Fig. 5

lis a detail view of a lock to hold the ring rails in dofiing position.Fig. 6 is a trans-` verse sectional view taken in the plane of line`6-6of Fig. 4. Fig. 7 is a fragmental horizontalsection on line 7-7 of Fig.4. Fig. 8 is a view looking from the left-hand side of Fig. 4. Fig. 9 isa fragmental plan view of the end of the machine shown in Fig. 1. Fig.10 is aview of the yarn package produced by the machine. F ig. 11 is adetail view of one of the member comprised in the mechanism. Fig.'1.2 isa fragmental end elevation. Fig. 13 is a fragmental detail view.` Fig.14 is a fragmental side elevation. Figs. 15 and 16 are detail views of acertain element comprised in the machine.

The crel is not illustrated in the drawings, as the invention has noparticular reference thereto.

Our improvements have been shown as embodied in a ring spinning machineof ordinary construction, but it will be understood that the inventionis not limited to any ,particular form of ring spinning machine.

The machine comprises spindles 1, the bases of which are mounted in theupper lianges of the ladder rails l2. 3 are the whirls on the spindles.4 are bands extending from the drum 5 to the whirls The drum 5 is lixedupon the main shaft 6. The ring rails 7 are connected to the upper endsof lifting rods 8, the latter being slidably mounted in the ladder'rails 2. To the lower ends of the lifting rods 8 are attached shoes 9(Fig. l) that rest upon roller studs 10 modified without de arture fromthe inven- -tion herein disclose A counterweight 15 (Fig. 4) attached toeach of the rock shafts 12 tends to raise the ring rails; A build motionof any suitable construction cooperates with the counter- Weights toproduce the upward and downward movement of the ring rails in thexnormal! operation of the machine. Hereln is shown a combination warp andfilling builder of well-known character. Said builder comprises abuilder arm 16 (Fig. 6) pivoted at 17 to a stationary part of theframework. On the builder arm 16-is mounted a roller 18 that bearsagainst a lling cam 19 which is splined upon a shaft 20. The shaft 2O'is driven by means otk the change-speed gear train illustrated in Fig.8. A. filling arm 21 is pivoted to the builder arm 16 at 22 and lies incontact with a roller stud 23 on a rack 24. Said rack isslidablyrmounted on the builder arm 16 to move toward and away from theaxes 17 and 22. The rack 24 meshes with a worm 25 which is rotatablymounted in the builder arm`16, said worm being intermittently and slowlyrotated in the normal operation of the spinning machine by well-knownmeans not herein shown in detail, so as to cause the roller stud 23 tomove toward the axes 17 and 22. A chain 26 connected to a hook 27 on`the'arm 21 extends over a guide sheave 28'and .thence to the adjacentarm 13 (Fig. 4). The counterweights 15 acting through the arms 13 andthe chain 26 hold the roller stud 18 against the cam 19. i

In the rotation of the filling cam 19 the arms .16 and 21 are swung,thereby causing the ring rails 7 to rise and fall and thus to lay theyarn on the revolving bobbins. As the rack 24 moves toward the axis 22,the arm 21 rises with. relation to the arm 16, thereby causing the ringrails 7fto rise gradually so as to cause'the yarn masses on the bobbinsto lengthen in the Well-known manner. lVhen the yarn masses a have beencompleted, mechanism to be now described is operated to cause theautomatic performance of certain operations preparatory to the doiing ofthe bobbins. Theseoperations consist of the formation of a small yarnmass b on the upper end of each bobbin above the yarn mass a, thelowering of the ring rails 7 to dofing position, the windin of thecorrect amount of yarn on the lower end of the bobbin, the spinning ofthe proper amount of slack yarn, and the stoppage of the machine.

A transverse rock shaft 29 mounted in the machine framework carriesaztreadle which is. held in normal osition by means of a tension spring31. he normal position of the treadle is determined by contact of thetreadle arm with the end frame of the machine. On the shaft 29 is fixeda fork 32 which engages the hub of the filling cam 19. When the yarnvmasses a have been completed, the operator depresses the treadle 30,thereby movin the cam 19 out of the vertical plane of the roller 18,whereupon the counterweights 15 cause said roller1 to rise unt-i1 itstops against the hub of the cam, the

ring rails at the same time being raisedun` til they are in the planeindicated by the i dotted lines in Fig. 6.`

ratchet wheel 40 that is rotatabl To prevent the ring rails from risingso rapidly as to break the threads, we provide the following describedmechanism. 33 Fig. 7) is a shaft which is slowl driven rom the shaft 6by means of the c ain belt 34 and the gear train illustrated in Fig. 8.The shaft 33 is connected by means of bevel gears 35 to a shaft 36 to wich is secured a` disk 37 carrying a dog 38. A tension spring 39 holdsthe dog 38 in engagement with a mounted v on the shaft 36.A Rigid with te ratchet wheel 40 isa pinion 41 that meshes with a segment 42 carriedby an arm 43 which is fixed on the adjacent'shaft 12. The shaft 36 isdriven in the direction indicated by the arrow in Fig. y'7. It will beseen that when the filling cam 19 is moved oi the roller 18, the actionof the counterweights 15in raising the ring rails will be restrained bythe dog 38. The counterweights cause the segment 42 to turn the' ratchetwheel 40 until a tooth thereof stops against the dog 38 and thereafterthe ratchet wheel turns at the same rate as the shaft 36.

It may be here stated that the normal operation of the build motion isnot intel"- vfered with by the dog 38, the travel of said dog beingsuiciently rapid so that it does not restrain the rotation of theratchet wheel 40 when the ring rails rise in the normal buildingoperation. p

The ring rails having been raised by the counterweights 15 until theyreach the plane indicated by the dotted lines in Fig. 6, the continuingoperation of the machine causes yarn b to be wound around the upper endofthe bobbins above the yarn mass a, the yarn mass b being connectedtothe yarn Y mass-a, by a'strand 0 (Fig- 10l- The depression of thetreadle 30 in operation mechanism which lowers the ring rails to doingposition as soon as sucient yarn b has been wound upon the .upper endsof the bobbins. This mechanism comprises a windin drum 44 rotatablymounted upon the s aft 33. A cable 45 is fixed at one end to the Windingdrum 44, the other end of the cable being attached is a fork fixed uponthe rock shaft 29 and l engaging the hub of the clutch member 48.Depress1on of the treadle 30 causes the winding drum 44 to revolve withthe shaft 33, thereby causing the cable 45 to be partially wound up onsaid drum. By the time suflicient yarn b has been wound on the bobbins,a collar 45 on the cable 45 has come into contact with the arm 47,whereupon the continuing movement of the cable causes the shafts -12 toturn in the direction to lower the ring rails to a point slightly belowthe lower limit of the normal traverse. Such movement of the shafts 12also allows the builder arm 16 and the filling arm 21 to descendsomewhat below their normal position and hence out of the way of the cam19 when the latter is subsequently slid into normal position by the'spring 31. In the descent of the ring rails, av

strand d is wound around the yarn mass a. The descent of the ring railsis limited in any usual or suitable Way, as by means of a lug 14 (Fig.4) located on the rod 14 in y position to stop vagainst .a portion 51 ofthe framework of the machine. When the ring rails reach their lowerlimit of movement, they are automatically locked in such position bysuitable means, as, for example, thatI shown in Figs. 4 and 5. 14" is acollar fixed to the rod 14. 14c is a latch pivoted to a suitable part ofthe machine frame in position to drop behind the collar 14" when thering rails reach lthe doing position. One

side of the collar is tapered to push the latch 14 aside as the ringrails approach the lower limit of their movement. When in lockinposition lthelatch is supported against t e pressure of the collar by abracket 14". The latch may be manually wihdrawn by `suitable means suchas a ro 14.V

After the ring rails have been llooked indoling position, the operatorreleases the lll) treadle, the spring 45* restoring the winding drum 44andcollar 45" to normal position. Any rotation ofthe shaft 33 which mayoccur after the lug 14 strikes the stop l'merely causesl the clutchmember 48 to slip past the clutch face 49 on the winding drum, theclutch teeth being suiciently inclmed tcallow such slippage.

As the ring rails reach theiimit of their downward movement, means isactuated to .throw in a low-speed drive for the machine.

There is a stud 52 (Fig. 3) fixed to one of the arms 11 at the drive endof the machine, said stud having an' opening through which a rod 53extends freely. A54 is a nut on the rod 53 belowy the stud 52. The upperend` `of the rod 53 is pivoted to a latch 55 which gagement with thelever 58. 60 is a tension springv connected to the lever 58 and normallyrestrained by the latch 55. The other varm kof the lever 58 bearsagainst a lstop f collar 61 on a slidable belt shifter rod 62.

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The loop 63 of the belt shifter engages a drive belt 64. Said belt isarranged to run upon a tight pulley 65 and a loose pulley 66 mountedupon the shaft 6. Back gearing is provided for communicating power fromthe belt 64 when the latter is on the loose pulley, to the tight pulley65. Said back gearing is thrown into operation by means including alever 67, the larm 68 of which is engagedv bythe forked end of the lever58. The arm 69 of the lever 67 engages the forked arm 70 of a lever(7)1. The arm 72 of the lever 71 is connected by means 'of a link 73 toan arm 74 which is pivotally mounted upon a sleeve 75 (Fig. 9), saidsleeve being fixed in bracket por. tions 76 and 77 provided in themachine framework., Pivotally mounted upon the sleeve 75 is a bracket(Fig. 9) that'rotatably supports a shaft "79. On said shaft is fixed awheel .80 adapted to engage `the drive belt 64 when said belt is runningupon the lloose pulleyA 66. Rigid with the shaft 79 is a pinion-81thatmeshes with a spur gear wheel 82 which lis fixed upon a shaft 83 that isrotatably mounted in the sleeve 75. Upon the other end of the shaft 83is a pinion 84` that meshes with a spur gear wheel 85 which is rotatablymounted upon\ a shaft .86' carried by a bracket 87. The bracket 87 'ispivotally mounted upon the sleeve 75. l Upon the shaft 86 is fixed adisk 88 having a slot-89 (Fig. 13) into which extends a pin 90 set inthe spur gear wheel 85. To the shaft 86 is fixed a wheel 91, theperiphery of which 'is covered with leather or other Isuitable frictionmaterial. The friction wheel 91 is arranged to engage the periphery ofthe tight pulley 65 when the wheel 80 engages the drive belt 64.' Rigidwith the brackets 78 and 87 are upst-anding'arms 92 arid 93,respectively, which are engaged by the opposite ends of a level.'

v94, said lever being pivoted upon anarm 95 which is pivoted on thesleeve 75. Rigid with the arm 95 is anI arm 96 that normally standsagainst a stop 97. On the arm 96 is pivoted a dog 98. (Fig. 12) thatnormally bears against the offset portion 99 (Fig. 16) of an arm 100which is rigid with the arm 74. 101 is a stop on the arm 100 to limitdownward movement of the dog underjthe action of the spring 102.

Normally the weight of the brackets 78 and 87 and the parts carriedthereby holds the arm 96 against the stop-97, the dog 98 being incontact with the portion 99 of the arm 100. When the latch is disengagedfrom the lever 58, the spring moves the armlOO in the direction to pressthe wheels 80 and 91 against the drive belt 64 and the tight pulley 65,respectively. At first the momentum of the machine tends to drive thewheel 91 and the disk 88, the disk exerting its force against the pin90. Slippage thereupon occurs between the tight pulley and the wheel 91,or between the drive belt 64 and the wheel 80. orbetween both of thewheels 80 and 91 and their respective contacting elements, until therotation ofthe shaft 6 due to the momentum of the machine h as beenchecked. The back gearing thus acts as a braketo slow down the machinepromptly to the Speed determined by said back gearing.

Upon the stoppage of the ring railsin their lowest position, a few'coilsof yarn e are wound upon the lower ends of the bobbins.A To distinguishthe coils e from the yarn `mass a, the former are indicated by heavylines in Fig. 10. By the time suilicient -yarn e has been wound, thespeed of the machine will have been reduced to the speedfdetermined bythe back gearing, which is preferably just below that at which the yarnballoons; i. e., the low speed is such that the strand of yarn f (FigT2) running from the drawing rolls to the traveler g on the spinning ringla, does not balloon, but, on the contrary, comes into contact with theyarn on the bobbin. By reason of such contact, said strand and thetraveler are carried around with the bobbin, and consequently the yarnproduced` by the drawing rolls during the slow operation of the spinningmachine is not wound on the bobbin, but instead accumulates as slackbetween the drawing rolls and the traveler. Thestrand f kinks at-one ormore points, as indicatedat c in Fig. 2. l

Means is provided for disengaging the dog 98 from@ the portion 99 of thearm 100, when the predetermined amount of slack yarn hasbeen spun. Thismeanscomprises a pawl103 (Fig. 13). pivotally mounted on the disk 88 andhaving afinger 104 which is held in contact with the pin 90 by a spring105. When the pin 90 movesinto contact een with the leading end wallofthe slot 89,` the pawl 103 is swung into positiontoengage a 87. On oneend of the shaft. 107 is a crank` en W ratchet wheel 106 fixed upon ashaft 107 which is r'otatably supported in the bracket arm 108 carryinga pin 109 which is arranged to engage an extension 110 of the dog 98. Atorsion spring 111 normally holds the pin 109 against the lower side ofthe extension 110. 112 is a detent or locking pawl which is pivoted onthe bracket 87 in sition to engage the ratchet wheel 106. gaid detent isnormally held away from the ratchet wheel by a stop 113 on the frameaging an extension 114 of the detent. en the bracket 87 is moved by thespring 60, the detent 112 is placed in contact with the ratchet wheel bya tension spring 115 connected at one end to the ,extension 114 and atits other end to a post 116 on the bracket 87. The pawl 103 being movedinto effective position by the pin 90 when the braking function of thelow-speed drive has been fulfilled, it will be Aseen that the movementof the throw-out pin 109 begins approximately simultaneously with theproduction of slack yarn, and hence the amount of slack yarn is notaffected by variations in the amount of slippage between the brakeelements.

The operation is as follows: When the bobbins are to be doed, theoperator depresses the treadle 30 whereupon the rails are raised abovethe normal traverse. After a small yarn mass b has been spun on theupper end of each bobbin for engagement by` an end-finding device (notshown), the ring A rails are automatically lowered to a plane below thenormal traverse.` As the ring rails approach said plane the projection52 (Fig. 3.), acting through the rod 53, disengages the latch from thelever 58, whereupon the spring 60 shifts the drive belt 64 from thetight pulley to the loose pulley 66. and swingsthe brackets 78 and 87into position to press the ;wheel.80 against the drive belt and thewheel 91 against the tight pulley 65. Power is thereby, transmitted fromthe belt 64, through the -yvheel 80, shaft 79, gears 81 and 82, shaftB/,gears 84 and 85, pin 90,disk 88, shaft' 86 and wheel 91 to the wheel 65,the wheel 91 acting first as a brake and thereafter vdriving the machineat low speed. Before lthe speed has been fully reduced, suiiicient ar'ne will have been wound upon the lower'v-"ends ofthe bobbins, the ensuinglow-speed operation of the machine causing the production of a slackyarn. When reversal of torque occurs. the pin 90 moves into engagementwith the leading end wall of the slot 89, thereby swinging the pawl 103into position to engage the ratchet wheel 106. As the gear wheel 85 andthe disk 8'8 revolve, the pawl 103 turns the ratchet wheel step by step,thus swinging the crank pin 109 until finally it strikes the upper sideof the extension 110 and rocks the dog 98 out of contact with theportion 99 of the arm 100. Gravity thereupon causes the brackets 78 and87 to swing downwardly until the bracket. 87 strikes the stop 97, theend of the dog 98 voverlying the portion 99. In such downward movementot' the brackets, the extension 114 strikes the stop 113 and withdrawsthe detent 112 from the ratchet wheel 106, whereupon the torsion spring111 restores the crank pin 109 to contact with the lower side of theextension 110. The throw-out -mechanism 103, 106, 108 is arranged tostop the machine as soon as the proper amount of slack yarn has beenspun. In the ensuing do'ing o eration, all or most of the yarn e willslip o the bobbin.

Hence, when the coils b are stripped from vsmall yarn mass forend-finding purposes and then lowered for the winding of a few turns ofyarn for dofiing purposes on the lower endvof the bobbin, and for thespinlning of a little slack yarn, after which the machine stops.' Thedescent of the ring rails from the end-finder-coil spinning position tothe doing position is effected at such speed that the shortestpracticable strand is produced between the end-finder coil and thedoiing coil.

When the machine is ready to be again set in motion, the operator shiftsthe belt 64 to the tight pulley by. means of the usual hand lever (notshown), the lever 58 being thereby moved into the position shown in Fig.9, where it is retainedby the latch 55. Such movement of the lever 58raises the arm 100 far enough to allow the do 98 to spring down behindthe portion 99,4 ne dog being supported behind said portion by the lug101.l

The invention is not limited to the construction and arrangement hereindisclosed, as various modifications and reorganizations may be effectedwithout departing from the yspirit and sco e of the invention as definedAin the appen ed claims.

communicating power from the first mentioned wheel to the other,mechanism for placing said wheels in contact with said belt and tightpulley, a spring for actuating said mechanism and said belt shifter, adet-ent for the spring, and means actuated by the ring rail forwithdrawing the detent.

2. A spinning machine having, in combination, a spinning element, adrive shaft, a tight pulley and a loose pulley on said shaft, a drivebelt arranged to run on said pulleys, a shifter for the belt, reductiongearing arranged to coact with the belt and the tight pulley, mechanismfor operatingr said reduction gearing, a spring for actuating saidmechanism and said belt shifter, a detent for the spring, and meansactuated by said spinning element for withdrawing the detent.y

3. A spinning machine having, in combination, spindles, a shaft andconnections for rotating the spindles at normal speed, a ring railarranged to be lowered for the spinning of yarn upon the lower ends ofthe bobbins, and means controlled by the lowering of the ring rail fordriving said shaft at a lower speed for a predetermined length of time.

4. A spinning machine having, in com1I bination, spindles, a shaft andconnections for rotating the spindles at normal speed, a ring railarranged to be lowered for the spinning of yarn upon the lower ends ofthe bobbins, and means automatically thrown into operation in suchlowering of the ring rail for driving said shaft at a lower speed for apredetermined length of ime.

5. A ring spinning machine having, in combination, a ring rail; abuilder motion comprising means tending to raise the ring rail, abuilder arm, a cam for movingthe builder'arm, a filling arm movablyconnected to the builder arm, and a connection between the filling armand the ring rail; and power-driven means independent of the buildermotion for lowering the ring rail to dofing position.

6. A spinning machine having, in combination, spindles, a shaft andconnections for rotating the spindles at normal s ed, a ring'railarranged to be lowered or the spinning of yarn upon the lower ends ofthe bobbins, and 'means controlled by the rin rail for drivng said shaftat a lower Spee 7. A spinning machine having, in combiy nation, a highspeed drive, a low speed drive,

a ring rail arranged to descend below the normal traverse, meanscontrolled by abnor-v mal descent of the ring rail for replacing thehigh speed drive with the low speed drive,

and means for throwing out the low speed drive after apredetermined'length oftime. 8. A ring spinning machine having, in

combination, a ring rail; a builder motion comprising means tending toraise the ring rail, a bullder arm, a cam for movlng the builder arm, afilling arm movably connectconnected to said drum and adapted'to act`upon the ring rail'L to lower the latter to doffing position.

9. A spinning machine having, in combination, a ring rail, a windingdrum, a cable connected at one end to the winding drum, a springconnected to the other end of the cable for moving the cable inopposition to the winding drum, operating connections betweenthe cableand the ring rail, and means for rotating the winding drum vto lower thering rail-to doliing position.

10. A spinning machine having, in combination, a ring rail, a windingdrum, a flexible connection between the winding drum and the rail, adrive shaft, and means driven from said shaft for rotating the windingdrum to lower the ring rail to doiing position. Y

` 11. A spinning machine having, in combination, a ring rail, a buildermotion for trav- .,ersing`the ring rail, said rail tending to ranged tobe placed in action by abnormal` descent of the ring rail, and means forthrowing out said drive afterl a predetermined length of time.

13. A spinning machine having, in combination, a ring rail arranged totravel beyond the normal traverse, a low speed drive arranged to beplaced in action by abnormal travel of the ring rail, and means forthrowing out said drive after a predetermined length of time. Y j

14. A spinning machine having, in combination, a ring rail arranged todescend below the normal traverse, a drive controlled by abnormaldescent .of the rin rail, and means for throwing out said drive after apredetermined length of time.I A

15. A spinning` machine having, in combination, a ring rail arranged todescend below the normal traverse, and a low speed drive controlled byabnormal descent of the ring rail.

16. A spinning machine having, in combination, a ring rail arranged totravel beyond the normal traverse, and a low s eed drive controlled byabnormal travel o the ring rail.

Dfi

l Uil lli 17. A spinning machine having, in combination, a ring railarranged to descend below the normal traverse, and a drive for themachine controlled by abnormal descent of the ring rail.

18. A spinning machine having, in combination, a ring rail arranged totravel beyond the normal traverse, and a drive for the machinecontrolled vby abnormal travel said normal traverse, and a low speeddrivemechanism for imparting a predetermined amount of rotation to thespindle'while the I ring is in such abnormal position.

20. A spinningr machine having, in combination, a drawing roll, a bobbinspindle, a. spinning ring, a traveler on the ring, means for driving thedrawing roll and the Y.. spindle at winding speed, and means actingafter the formation of the`mai'n yarn mass upon the bobbin to drive thedrawing roll and the spindle at such reduced speed that ballooning ofthe yarn between the roll and the traveler does not occur.

21.'A spinning machine having, in combination,-a drawing roll, a bobbinspindle,-

a spinning ring, a traveler on the ring, and means for drivingthevdrawing roll and the spindle after the 'formation of the main yarnmass thereon for a predetermined length of time at subnormal speed sothat ballooning ofthe yarn between the roll and the traveler does notoccur.

22. A spinning machine having, in combination, spinning elements, meansto drive the spinning elements at winding speed, and means to brake thespinning elements, and thereafter drive them at less than'winding speed.l

23. A spinning machine having, in combination, spinning elements, meansto drive the spinning elements at winding speed, and means actingautomatically after the formation of the main yarn .mass to ldriveA thespinning elements at less than winding speed for a predetermined lengthof time to produce slack yarn.

24. A spinning machine having, in combination, a rotary spindle for abobbin, a spinning ring,- means to raise the ring into position to spinan end-finder coil on the upper end .of the bobbin, means to lower thering into position to spin a doiing coil on the lower end of the bobbin,means to lock .the ring in the last mentioned position, and

means to drive the spindle at sub-ballooning speed.

25. A spinning machine having, in combination, a rotary spindle for abobbin, a

spinning ring, means for raising the ring into position to spin anend-finder coil on the an end-finder coil on the upper endof the bobbin,means automatically actuated to lower the ring from such elevatedposition jto a position for spinning a few turns of yarn on the lowerend of the bobbin, means to lock the ring in the last mentionedposition, and means controlled by the lowering means for driving thespindle at sub-ballooning speed for a predetermined length of time.

27. A spinning machine having,- in combination, a ring ra'il, a builderarm operativelyconnected to the rail, a'laterally slidable cam, meansfor holding the arm against the cam, a sha-ft, a winding drum rotativelymounted on the shaft, a flexible connection between-the Winding drum andthe rail, a clutch element on the shaft arranged to engage the windingdrum, a'rock shaft, forks on therock shaft for slidingvsaid cam andclutch member,- manipulative means for turning the rock shaft in onedirection, and means for turning the rock shaft in the oppositedirection.

28. A spinning machine having, in combination, a ring rail, a: builderarm operatively connected to the rail, a' laterally slidable cam,meansfor .holding the arm against the ca'm, a winding drum, a -iiexibleconnection between the winding drum and the rail, means for rotating thedrum including a clutch member, and manipulative means for -sliding saidcam and clutch member.

29. A spinning machine having, in combination, a ring rail, a builderarm operative-v in one direction, and means for turning the rock shaftin the opposite direction. l

30. A spinning machine having, in combination, af ring rail, a buildermotion for eecting a normal traverse of the ring rail, and means foreffecting an abnormal traverse of the ring rail including a rota'ryshaft,

1 nected to the'winding drum and operatively connected to the ring rail,and means for connecting and disconnecting the winding drum and saidrotating shaft.

32. A -spinning machine having, in combination, a ring rail, a rockvshaft operatively connected to the rin rail, a counterweight tendingto` turn the s aft in the direction to raise the ring rail, -a gearsegment onthe rock shaft, a pinion meshing with the segment, a wheelrotatable on the axis of the pinion, a. pawl carried by said wheel, aratchet wheel connected to the pinion and engaged by said pawl, andmeans for rotating the pawl-carrying Wheel backwardly with reference tothe ratchet Wheel.

33. A spinning machine having, in combination, a ring rail, meanstending to raise the ring rail, a ratchet wheelgeared to the raisingmeans, a wheel rotatable on the axis of the ratchet wheel, a pawlcarried by the second mentioned wheel and engaging the ratchet wheel,and means for rotating the pawl-carrying wheel backwardly with,reference to the ratchet wheel.

34,-A spinning machine having, in combination, a ring rail, a builderarm operatively connected to therail, a cam, means for holding the armagainst the cam, means' for causing relative disengaging movementbetween the arm and the cam, and means for restraining the resultantrise of the rail, but permitting a slow upward movement thereof.

35. A spinning machine having, in combination, a ring rail, a builderarm operatively connected to the rail, a cam', means for holdin the armagainst the cam, means for lateral y moving the cam'out of operativerelation to the arm, vand means for re,- straining the resultant rise ofthe rail but permitting a slow upward movement thereof.

36. A spinning machine having, in combination, a ring rail, a buildermotion operai tively 'connected to the rail and including;

means tending to raise the rail, means for operating the builder motionto release the raising means to action, and vmeans vfor restraining theresultantrise of the rail but permitting a slow upward movement thereof.

37. A spinning machine having, in combination, a ring rail tending torise, a builder motion for traversing the ring rail, and power 'meansunder the4 control of the operator for lowering the ring rail below thcnormal traverse.

38. A spinning machinehaving, in combination, a ring rail, a vbuilderarm operatively connected to the rail, a cam, means for holding the armagainst the cam, and means for laterally moving the cam out of operativerelation t0 the arm whereby the latter is permitted to rise.

39. A spinning machine having, in combination, a ring rail, a builderarm operatively connected to the rail, acam, lmeans for holding the armagainst the cam, and means for causing 'relative disengaging movementbetween the arm and the cani whereby the arm is permitted to rise.

40. A spinning machine4 having, in combination, a ring rail, afbuildermotion comprising a counterweight and a cam, a lowering means for therail, and means for disabling the cam to permit the counterweightAtocraise the rail, and for subsequently placing the owering means inaction.

41. A spinning machine having, in combination, a ring rail, a windingdrum, a cable connected at one end to the winding drum, means connectedto the other end of the cable for moving the cable in opposition to thewinding drum, a member operatively connected to the ring rail, saidcable being movable longitudinally relative to said member, a device onthe cable adapted to engage said member to move the ring rail to doffingposition, and means for rotating the winding drum.I

42. A spinning machine having, in combination, spinning elements, meansto drive` the spinning elements at Winding speed to form the main yarnmass and a doliing coil, and means acting automatically after theformation of the doiiing coil to drive the spinning elements at lessthan winding speed for a predetermined length of time to produce slackyarn.

43. A spinning machine having, in combination, spinning elements, andmeans for automatically driving the spinning elements at less thanwindingpspeed for a predetermined length of time to produce slack yarn.

In testimony whereof we have hereunto set our hands. Y

HOWARD D. COLMAN. BURT A. PETERSON.

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